RS PRO Plain Stainless Steel Hex Socket Countersunk Screw, Hex Socket, M3 x 50 mm
- RS Stock No.:
- 281-518
- Manufacturer:
- RS PRO
Bulk discount available
Subtotal (1 box of 100 units)*
SGD21.87
(exc. GST)
SGD23.84
(inc. GST)
FREE delivery for orders over $150, or create a business account to enjoy free delivery from just $28
In Stock
- 3 unit(s) ready to ship
- Plus 68 unit(s) ready to ship from another location
- Plus 100 unit(s) shipping from 29 April 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Box(es) | Per Box | Per unit* |
|---|---|---|
| 1 - 4 | SGD21.87 | SGD0.219 |
| 5 - 9 | SGD21.32 | SGD0.213 |
| 10 - 29 | SGD20.79 | SGD0.208 |
| 30 + | SGD20.27 | SGD0.203 |
*price indicative
- RS Stock No.:
- 281-518
- Manufacturer:
- RS PRO
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Product Type | Socket Screw | |
| Thread | Metric | |
| Length | 50mm | |
| Head Shape | Hex Socket Countersunk | |
| Drive Type | Hex Socket | |
| Material | Stainless Steel | |
| Finish | Plain | |
| Standards/Approvals | DIN 7991 | |
| Screw Diameter | M3 | |
| Grade | A | |
| Select all | ||
|---|---|---|
Brand RS PRO | ||
Product Type Socket Screw | ||
Thread Metric | ||
Length 50mm | ||
Head Shape Hex Socket Countersunk | ||
Drive Type Hex Socket | ||
Material Stainless Steel | ||
Finish Plain | ||
Standards/Approvals DIN 7991 | ||
Screw Diameter M3 | ||
Grade A | ||
RS PRO M6 x 20 mm Hex Socket Countersunk Screw Black, Self-Colour Steel
Use this RS PRO countersunk fastener to prevent screws from protruding from equipment or surfaces. This useful component is constructed of stainless steel, which has a high strength-to-weight ratio. It's coated in black oxide for additional thickness and corrosion resistance, so it can withstand heavy-duty use in tough industrial conditions.
This screw's compact dimensions make it a good choice for applications where space is limited. It's easy to install as you can simply use an Allen or hex key to tighten and loosen it. Use this screw for DIY constructions, building panels and woodworking.
Features and Benefits
RS PRO Metric Countersunk Hexagon Steel Screw
RS PRO hexagon socket countersunk screws are an excellent choice when you need a fastener to sit flush or below the surface of your material.
These popular metric thread countersunk screws are produced in 10.9 grade steel and are designed for light duty applications where space is limited. These fasteners have a black finish which ensures an attractive, quality appearance and finish wherever they are used.
These screws fasteners can be tightened or undone using an Allen key.
Features and Benefits:
Various thread sizes available, including M3, M4, M5, M6, M8 and M16
Countersunk – the head does not stick out so that nothing can hit it and interfere with the operation of the application
Also used in many internal joinery applications
Have the marking on the head
More resilient than 8.8 grade
Nominal strength of 1040 N/mm²
Yield strength of 940 N/mm²
Requires a Hex key / Allen key
Typical Applications:
Although uses may vary, as standard, these screws are fasteners for industrial equipment or machines which requires parts to be fixed onto a surface or together. The socket will need to be the same metric thread as the screw itself. As an example, some of the types of uses would be:
Woodworking
Domestic applications
Fasteners and fixings
Machine tooling and repair
Security guarding
Panel Building
Electronic applications
Automotive industry
Medical applications
Facilities and maintenance applications
FAQs
What is a socket screw?
Socket screws are defined by their name. They are a type of threaded bolt which screws into the intended socket. There are various thread sizes and lengths and can be used for both industrial and personal purposes. Good quality and reliable RS PRO socket screws ensures the fixing will remain strong and stable, whatever the application.
Note
Requires a Hex key
We offer a range of hexagon countersunk socket screws in black self-coloured steel, available in various thread sizes and lengths. Refer to the Datasheet and Range Overview download file for details.
If black oxide self-coloured steel is not what you are looking for we also offer steel hexagon countersunk socket screws with a BZP finish or alternatively A2 (306) and A4 (316) stainless steel.
We offer a range of hexagon countersunk socket screws in black self-coloured steel, available in various thread sizes and lengths. Refer to the Datasheet and Range Overview download file for details.
If black oxide self-coloured steel is not what you are looking for we also offer steel hexagon countersunk socket screws with a BZP finish or alternatively A2 (306) and A4 (316) stainless steel.
Standards
Threaded in accordance with DIN 7991